# Polyforge vs Eureka

The clearest difference is update cadence: Eureka at every 4 weeks against Polyforge's every 28 months. Eureka also leads on iOS requirement (12.0 vs 15.0). Polyforge's advantage is review sentiment (94% vs 77%). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Polyforge sells 1 one-off in-app purchase and Eureka sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Polyforge against 4.7 for Eureka. Both are backed by a comparable volume of ratings — 930 and 513 respectively. Written reviews are what separate them: 94% of Polyforge's written reviews are positive against 77% of Eureka's.

Polyforge ships an update every 28 months, Eureka every 4 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Polyforge | Eureka |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (930 ratings)](https://appshunter.io/ios/app/polyforge/id1109788041/reviews)** | [4.7 (513 ratings)](https://appshunter.io/ios/app/eureka-brain-training/id1485438085/reviews) |
| Number of ratings | **930** | 513 |
| Positive reviews | **93.6% of reviews** | 76.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 28 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 112 MB | 140 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ImpactBlue Studios Pty Ltd](https://appshunter.io/developer/413227646) | [INFINITY GAMES, LDA](https://appshunter.io/developer/1088875165) |

## What reviewers say

### Polyforge

[App page](https://appshunter.io/ios/app/polyforge/id1109788041)

Create unique crystals by striking their sides in a specific sequence. Experience a blend of engaging gameplay, beautiful visuals, and calming soundscapes. Compete globally for the highest achieved level.

**Highlights:** Forge new shapes, Strike all sides, Avoid striking same side twice, Simple visuals, Serene sound design, Global leaderboards

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |

**What reviewers like**

- 👍 Relaxing and soothing
- 🎨 Beautiful graphics and colors
- 🎶 Calming and enjoyable music
- ⏱️ Simple and easy to play
- 🎯 Challenging and addictive gameplay

**What reviewers complain about**

- 🔁 Repetitive shapes and patterns
- 🎨 Some color combinations hard to see
- ⚠️ Difficulty can be frustrating at times

**Reported bugs**

- Occasional freezing or crashing
- Issues with ad playback

**Requested features**

- More diverse shapes and patterns
- Difficulty settings or modes
- Ability to customize color schemes


### Eureka

[App page](https://appshunter.io/ios/app/eureka-brain-training/id1485438085)

This app offers over 50 mini-games designed to test and improve various cognitive skills like logic, memory, creativity, and focus. It provides a fun and challenging way to stimulate your brain and see if you can outsmart others.

**Highlights:** Over 50 mini-games, Tests logic, memory, creativity, speed, Improves focus and brain skills, Diverse and unique puzzles, Addictive brain challenge

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 🤩 Fun and engaging gameplay
- 🧠 Challenges the mind
- 👍 Kid-friendly
- 😍 Addictive and immersive
- 💯 Great for cognitive exercise

**What reviewers complain about**

-  anúncios Ads are intrusive
- 🗑️ Paid version still has ads
- 🧩 Lacks variety in puzzles

**Reported bugs**

- Ads after every level
- Paid version with ads


## Frequently asked questions

### Is Polyforge free?

Polyforge is free to download, with in-app purchases available.

### Is Eureka free?

Eureka is free to download, with in-app purchases available.

### Which has better reviews, Polyforge or Eureka?

Polyforge is rated higher. Polyforge averages 4.7 out of 5 from 930 ratings, while Eureka averages 4.7 from 513 ratings.

### Do Polyforge or Eureka have ads?

Both Polyforge and Eureka show ads.

### Which is updated more often, Polyforge or Eureka?

Polyforge ships an update every 28 months, and Eureka every 4 weeks. Most recently, Polyforge was updated on November 2, 2026 and Eureka on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*